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Finding the Fourth Proportional to 447,442.08, 617,472.12 and 256,466.64

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Solution

The fourth proportional to 447,442.08, 617,472.12 and 256,466.64 is: 353,925.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,442.08 : 617,472.12 = 256,466.64 : x
  2. Step 2: Convert to fraction form
    447,442.08/617,472.12 = 256,466.64/x
  3. Step 3: Cross multiply
    447,442.08x = 617,472.12 × 256,466.64
  4. Step 4: Simplify right side
    447,442.08x = 158,360,999,910.08
  5. Step 5: Solve for x
    x = 158,360,999,910.08/447,442.08
  6. Step 6: Final answer
    x = 353,925.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.